122140412213 has 16 divisors (see below), whose sum is σ = 123608715120. Its totient is φ = 120682638336.

The previous prime is 122140412203. The next prime is 122140412267. The reversal of 122140412213 is 312214041221.

It can be written as a sum of positive squares in 8 ways, for example, as 20992242769 + 101148169444 = 144887^2 + 318038^2 .

It is a cyclic number.

It is not a de Polignac number, because 122140412213 - 2²⁰ = 122139363637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122140412203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25041731 + ... + 25046607.

It is an arithmetic number, because the mean of its divisors is an integer number (7725544695).

Almost surely, 2^122140412213 is an apocalyptic number.

It is an amenable number.

122140412213 is a deficient number, since it is larger than the sum of its proper divisors (1468302907).

122140412213 is a wasteful number, since it uses less digits than its factorization.

122140412213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5896.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 122140412213 its reverse (312214041221), we get a palindrome (434354453434).

The spelling of 122140412213 in words is "one hundred twenty-two billion, one hundred forty million, four hundred twelve thousand, two hundred thirteen".